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The technology of travel time estimation based on cellular network has received much attention recently because of its low cost, wide spread of cellular networks, and a large number of phones as potential road traffic probes. However, in practice, low positioning precision and uncertain route determination caused by complex traffic network make it difficult to ensure the accuracy of travel time estimation...
Traffic incidents are a main factor that reduces capacity and service quality of roads. Due to the absence of efficient incident impact analyzing and predicting method, the traffic congestion and secondary accident brought by traffic incidents can hardly be avoided. In this paper we propose a history data based traffic incident impact analyzing and predicting method. By extracting regularity and volatility...
Nowadays Float Car Data (FCD) is playing an important role in real-time traffic information systems. However, traffic signal control in urban road network will cause random delay on float cars, and this kind of delay will result in considerable fluctuation of travel time. Thus, the accuracy of FCD system is seriously affected. In this paper, float car refining models are proposed to calculate the...
As an advanced means of collecting information of traffic condition of roads, floating car technology has drawn increasing attention from many countries. Whereas, floating car data (FCD) collected by floating car technology often could not cover all the roads of a city. Therefore, in order to increase the integrality and usability of FCD which reflects the traffic condition of roads, a model based...
Nowadays the floating car technology is playing a more and more important role in the dynamic route guidance, congestion management, traffic incidents detection, because it can collect more accurate travel time information in real-time traffic service systems. However the key problem of using it is that the moving direction and driving behaviors of floating car at low speed are dynamic and quite complex,...
Agora-C is a dynamic location reference method, which can match locations between dissimilar maps effectively. It references objects of the road network by a condensed selection of its real-world geographic properties which are stored in a digital map database, instead of utilizing pre-defined object IDs or look-up tables. This method is lack of practicability because of huge encoding bytes and low...
Nowadays the floating car data (FCD) is playing a more and more important role in the route guidance, because it can collect more accurate travel time information in traffic service systems. But the problem is that the congested traffic performs to be dynamic and quite complex, and therepsilas great data amount fluctuation at different time of day. Therefore, the stability of the data canpsilat be...
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